The 10 Best Blockchain Development Companies in Sydney - 2025 Reviews

Top Blockchain Development Companies in Sydney

Which one is the best for your company?

Takes 3 min. 100% free
44 companies
Search location
Ratings
Budget

All Blockchain Development Agencies in Sydney

  • 4.9
    (10 reviews)

    Technology Solution Partner

    Highly recommended
    Welcome To The Development Agency, A Premiere Software Development Agency In Australia We are The Development Agency, a company started with the imagination of a young man and now serving all around the globe, yes we can develop. We aim to be the top choice for businesses thriving in the digital landscape, prioritizing excellence and customer satisfaction. We do everything: user-centric design, robust development, unparalleled quality testing, and strategic digital marketing.
    3 works in Blockchain Development
    Located in Sydney, Australia
    From €10,000 for Blockchain Development
    Worked in Entertainment & Events (+7)
    Speaks English
    51-200 members
  • (0 review)

    Unleash Your Potential with Pique Squid.

    Looking for work in Blockchain Development
    Located in Sydney, Australia
    From €3,000 for Blockchain Development
    Works in multiple industries
    Speaks English
    11-50 members
  • 4.7
    (5 reviews)

    Empower Digital Finance

    Top awarded
    KMS Solutions empowers BFSI companies to optimize operations, drive innovation, and enhance product & service offerings through the seamless integration of cutting-edge technologies and tailored solutions.
    Looking for work in Blockchain Development
    Located in Sydney, Australia (+1)
    From €20,000 for Blockchain Development
    Worked in Software & Computer Services (+4)
    Speaks English, Vietnamese
    1001-5000 members
  • (0 review)

    See Beyond, Rise Above

    Persistent Systems is a global technology services company specializing in software product development and technology solutions. Established in 1990 and headquartered in Pune, India, the company operates across multiple sectors including healthcare, banking, financial services, telecommunications, and life sciences. Persistent offers a comprehensive range of services such as digital strategy and transformation, application development, product engineering, and data-driven insights, as well as cloud, security, and enterprise IT services.
    Looking for work in Blockchain Development
    Located in Sydney, Australia (+35)
    From €10,000 for Blockchain Development
    Worked in Clothing & Accessories (+1)
    Speaks English
    10001+ members
  • (0 review)
    Web & Mobile App Development legends | StartUps to Global Enterprises | Based in Sydney, Australia | We are the team powering the biggest brands in the World
    Looking for work in Blockchain Development
    Located in Sydney, Australia
    From €1,000 for Blockchain Development
    Works in multiple industries
    Speaks English
    1-10 members
  • 5
    (34 reviews)

    Crystal-clear hourly billing and hundreds of marketing and creative experts at your disposal.

    Recommended
    Top awarded
    Want to give your brand a boost in visibility, traffic, conversions, sales, and ROI? Take a look at our free marketing plan right here: https://ninjapromo.io/contact We're NinjaPromo and we're obsessed with helping brands like yours scale their marketing without the pain of hiring freelancers or dealing with detached agencies. As a Marketing-as-a-Service (MaaS) company, we’re your one-stop-shop for all things digital marketing. We give you access to the top 1% of marketers and creatives worldwide all for one monthly fee. We lift your brand higher with our multi-channel marketing, branding, and all things creative design. We're passionate about building brand identities, creating visually stunning content, and using the best and the latest tools and techniques to get your brand out there. We know how to make your social media buzz, get your SEO on point, create ads that actually get clicked, reach out to influencers, write emails that get opened, handle your PR, produce videos that tell your story, and design and develop websites that visitors love. And that's just scratching the surface. Here’s a snapshot of our services: SEO PPC SMM Influencer Marketing Email Marketing PR UX/UI Content Creation If you want to join the 250 ambitious brands that are already jump-starting their growth with our subscription-based model, then have a chat with our team today.
    Looking for work in Blockchain Development
    Located in Dubai, United Arab Emirates (+4)
    Budget on request
    Worked in Banking & Financials (+22)
    Speaks English
    201-500 members
  • 5
    (3 reviews)

    Award-winning full-service digital agency with a team of experts.

    Recommended
    EB Pearls is a Digital Agency in Australia that offers Mobile App, eCommerce & Web Design Services, with a #1 rating in Clutch and over 4000 projects completed.
    Looking for work in Blockchain Development
    Located in Sydney, Australia
    From €1,000 for Blockchain Development
    Works in multiple industries
    Speaks English
    1-10 members
  • (0 review)

    One Stop Destination for All Your Web Design, Web Development and Digital Marketing solution. Contact us at 61480 032 17

    From web development to building a smart and creative solution, we cater to all your needs with our groundbreaking team and tools. Client satisfaction is what we strive for. It is our REAL MOTIVATION. We believe in bringing success to your business by providing excellent digital solutions. From Local Startups to Global Enterprises, we help all types of businesses to deliver the best solutions. Contact us at +61 480 032 170 for all website development and digital marketing solutions.
    Looking for work in Blockchain Development
    Located in Sydney, Australia
    From €1,000 for Blockchain Development
    Works in multiple industries
    Speaks English
    1-10 members
  • (0 review)

    Simplifying complexity in Supply Chain, Information Management, FP&A, and Project Delivery.

    Cornerstone Performance Management delivers enhanced, data-driven business performance through collaboration between our passionate experts and clients. Our specialist SMEs and global consultant teams are enablers of change and transformation in supply chain, information management, FP&A, project delivery, and managed application services. Our multinational experience is paired with local knowledge and industry expertise. We operate across Asia Pacific, with teams based in Australia, New Zealand, Thailand, Singapore, India, Sri Lanka and the Philippines. Cornerstone Performance Management is part of CPM Group alongside PMsquare Asia and Quay Consulting.
    Looking for work in Blockchain Development
    Located in Sydney, Australia
    From €1,000 for Blockchain Development
    Works in multiple industries
    Speaks English
    1-10 members
  • 5
    (5 reviews)

    Comprehensive software development from planning to maintenance.

    We are an international software development company that develops solutions in 4 different segments of cloud automation and has sales partners or subsidiaries in 12 countries in Europe. We use a wide variety of technologies to accommodate our customers' business needs, and we have a worldwide team of experts in each technology and every field to ensure the highest standard of possible services. What we mainly propose to our customers through our wide variety of services, is a strong solid standing in the digital world that we live in nowadays, as well as their operations running as smoothly as possible, maximizing their potential for success.
    Looking for work in Blockchain Development
    Located in Budapest, Hungary (+3)
    From €3,000 for Blockchain Development
    Worked in Others (+10)
    Speaks English, German(+1)
    11-50 members
  • (0 review)
    Customer-driven global software development company based in Sydney with niche expertise in Big data management, cloud infrastructure and custom software solutions.
    Looking for work in Blockchain Development
    Unknown location
    Budget on request
    Works in multiple industries
    Speaks English
    1-10 members
  • (0 review)
    Australian web design agency focused on growing your revenue & returns with Web Design, SEO & PPC services. Get your free Proposal!
    Looking for work in Blockchain Development
    Unknown location
    Budget on request
    Works in multiple industries
    Speaks English
    1-10 members
  • Adactin is an IT Consulting Company Australia offering Software Development, Testing, Automation, App Development, Guidewire and SAP services.
    Looking for work in Blockchain Development
    Unknown location
    Budget on request
    Works in multiple industries
    Speaks English
    1-10 members
  • Technology People is Sydney’s most innovative IT Recruitment Company. Connecting the best IT Talent with leading companies to drive business growth
    Looking for work in Blockchain Development
    Unknown location
    Budget on request
    Works in multiple industries
    Speaks English
    1-10 members
  • (0 review)
    Human resource information system (HRIS) seamlessly manages all HR tasks. Recruiting, onboarding, employee management, payroll integration, and more
    Looking for work in Blockchain Development
    Unknown location
    Budget on request
    Works in multiple industries
    Speaks English
    1-10 members
  • (0 review)
    At Firesoft People, we are specialists in IT and Digital Recruitment, empowering people to find their dream jobs in tech.
    Looking for work in Blockchain Development
    Unknown location
    Budget on request
    Works in multiple industries
    Speaks English
    1-10 members
  • Storata provides digital software solutions to enterprise businesses, we partner with technology leaders to deliver industry-wide solutions. Storata – your silver lining to cloud services.
    Looking for work in Blockchain Development
    Unknown location
    Budget on request
    Works in multiple industries
    Speaks English
    1-10 members
  • We understand that clients do not approach solicitors just for any reason. We know each client whether an individual, a family or a business.
    Looking for work in Blockchain Development
    Unknown location
    Budget on request
    Works in multiple industries
    Speaks English
    1-10 members
12

Struggling to choose? Let us help.

Post a project for free and quickly meet qualified providers. Use our data and on-demand experts to pick the right one for free. Hire them and take your business to the next level.


Insights from Our Sydney Expert: Navigating Blockchain Development Agencies

Sydney, a bustling hub for technological innovation and entrepreneurship, is making significant strides in the realm of blockchain development. With a thriving scene bolstered by numerous agencies, Sydney stands at the forefront of this cutting-edge field.

Accomplishments of Blockchain Development Agencies

Diverse Clientele and Prestigious Awards

Sydney's blockchain development agencies have demonstrated their prowess across various industries, working with esteemed clients ranging from startups in the fintech sector to established financial institutions. Moreover, these agencies have earned accolades such as the 'Innovator of the Year' and 'Best Blockchain Technology Developer', underscoring their competence and innovative approaches in blockchain solutions.

Case Studies and Success Stories

Examining past successful projects is crucial when assessing potential partnerships with blockchain agencies. In Sydney, these agencies have facilitated transformative changes, enabling enhanced security, transparency, and efficiency for numerous businesses. Notable successes include implementing smart contracts for real estate transactions and developing blockchain-based supply chain solutions for the retail industry. These achievements are not only a testament to their technical expertise but also highlight their ability to address real-world challenges effectively.

Tips for Selecting a Blockchain Development Agency in Sydney

Understanding Your Budget

Budget considerations play a vital role in choosing the right blockchain development agency. Cost structures vary widely, influenced by the scope of the project and the agency's stature. For small businesses or startups, leveraging mid-sized agencies offers a balance between cost and quality, with projects potentially ranging from $15,000 to $50,000. Conversely, larger enterprises might engage in comprehensive blockchain integrations, where budgets can surge to over $100,000, reflecting the complexity and scale of such projects.

Gauging Track Record and Client Feedback

It's critical to evaluate the track records of potential blockchain agencies. Delve into case studies and client testimonials to understand their methodological and strategic prowess. Sydney agencies generally receive positive feedback, indicative of their reliability and the high-quality outcomes they deliver. These insights are crucial in ensuring that the chosen agency aligns well with your strategic objectives and can add considerable value to your project.

Why Sydney is Your Go-To City for Blockchain Development

With its innovative agencies and a competitive edge in technological advancements, Sydney represents an ideal ecosystem for blockchain development. Whether refining financial processes with blockchain or exploring decentralized applications, Sydney’s agencies are equipped to guide your venture into new territories of efficiency and growth. As your local Sortlist expert based here in Sydney, I'm here to help navigate this vibrant landscape to find the perfect partner for your blockchain needs.

Karim Saadoune
Written by Karim Saadoune Sortlist Expert in SydneyLast updated on the 23-03-2025

Discover what other have done.

Get inspired by what our companies have done for other companies.

Integra Ledger

Integra Ledger

Propawn

Propawn

Kailash

Kailash


Frequently Asked Questions.


Blockchain development agencies in Sydney prioritize security and scalability as crucial aspects of their blockchain solutions. Here's how they ensure these key factors:

Security Measures:
  • Smart Contract Auditing: Sydney-based agencies often employ third-party auditors or use automated tools to scrutinize smart contract code for vulnerabilities.
  • Encryption Protocols: Implementing robust encryption methods to protect data integrity and user privacy.
  • Multi-signature Wallets: Utilizing multi-sig technology for enhanced fund security and transaction approval processes.
  • Penetration Testing: Regular security assessments to identify and address potential weaknesses in the blockchain infrastructure.
Scalability Solutions:
  • Layer 2 Solutions: Implementing off-chain scaling solutions like state channels or sidechains to handle increased transaction volumes.
  • Sharding: Dividing the blockchain network into smaller, more manageable parts to improve processing capacity.
  • Consensus Mechanism Optimization: Choosing and fine-tuning consensus algorithms (e.g., Proof of Stake) that offer better scalability than traditional Proof of Work.
  • Interoperability: Developing cross-chain solutions to enable seamless interaction between different blockchain networks.

Sydney's blockchain development agencies also stay updated with the latest industry standards and best practices. For instance, many follow guidelines set by the Australian Digital Commerce Association (ADCA) and participate in local tech meetups to share knowledge on security and scalability improvements.

According to a 2023 report by the Australian Blockchain Industry Association, 78% of blockchain projects in Sydney implemented at least one Layer 2 scaling solution, while 92% conducted regular security audits. This demonstrates the strong focus on both security and scalability in the local blockchain development scene.

To ensure optimal performance and security, it's crucial for businesses in Sydney to partner with blockchain development agencies that have a proven track record of implementing these measures. Look for agencies that can demonstrate their approach to security and scalability, and don't hesitate to ask for case studies or references from previous projects.



Blockchain development companies in Sydney take a rigorous and multi-faceted approach to testing and quality assurance (QA) for blockchain applications. This process is crucial to ensure the security, reliability, and performance of blockchain solutions in a rapidly evolving technological landscape. Here's an overview of how Sydney-based blockchain development firms typically handle testing and QA:

1. Comprehensive Testing Strategies
  • Unit Testing: Developers test individual components or functions of the blockchain application to ensure they work as intended.
  • Integration Testing: Different modules are combined and tested to verify they interact correctly.
  • Functional Testing: The application is tested against the specified requirements to ensure it meets all functional expectations.
  • Performance Testing: The application is stress-tested to evaluate its speed, scalability, and stability under various load conditions.
  • Security Testing: Rigorous security audits and penetration testing are conducted to identify and address vulnerabilities.
2. Specialized Blockchain Testing Tools

Sydney blockchain companies often utilize specialized tools designed for blockchain testing, such as:

  • Truffle Suite for Ethereum-based projects
  • Hyperledger Caliper for benchmarking blockchain performance
  • Mythril for smart contract security analysis
3. Test Networks (Testnets)

Before deploying to the main network, applications are thoroughly tested on testnets that simulate the blockchain environment without real-world consequences. Popular testnets used by Sydney developers include Rinkeby for Ethereum and Testnet for Bitcoin.

4. Automated Testing

To improve efficiency and consistency, Sydney blockchain firms implement automated testing processes. This includes:

  • Continuous Integration/Continuous Deployment (CI/CD) pipelines
  • Automated smart contract testing using frameworks like Truffle
  • Regression testing to ensure new updates don't break existing functionality
5. Peer Code Reviews

Many Sydney-based companies implement strict peer review processes where multiple developers scrutinize the code for potential issues, adherence to best practices, and overall quality.

6. Compliance and Regulatory Testing

Given Australia's evolving regulatory landscape for cryptocurrencies and blockchain, Sydney companies pay special attention to compliance testing. This ensures that blockchain applications adhere to local and international regulations, including AML/KYC requirements.

7. User Acceptance Testing (UAT)

Before final deployment, applications undergo UAT where end-users or stakeholders test the application in a production-like environment to ensure it meets business requirements and user expectations.

8. Ongoing Monitoring and Maintenance

Post-deployment, Sydney blockchain firms implement robust monitoring systems to track performance, detect anomalies, and quickly respond to any issues that may arise in the live environment.

According to a recent survey by the Australian Digital Commerce Association, 85% of blockchain development companies in Sydney report spending at least 30% of their project time on testing and QA processes. This significant investment in quality assurance reflects the critical nature of blockchain applications and the high standards expected in the Sydney tech ecosystem.

By employing these comprehensive testing and QA approaches, blockchain development companies in Sydney ensure they deliver secure, reliable, and high-performance blockchain solutions that meet the stringent requirements of both local and global markets.



Blockchain development agencies in Sydney, like those across Australia, face a complex regulatory landscape when handling blockchain projects, especially when dealing with different jurisdictions. Here's how they typically approach regulatory and compliance aspects:

1. Local Expertise and Regulatory Knowledge

Sydney-based blockchain agencies often have a team of legal experts or partnerships with local law firms specializing in blockchain and cryptocurrency regulations. This ensures they're up-to-date with Australian laws, including those set by ASIC (Australian Securities and Investments Commission) and AUSTRAC (Australian Transaction Reports and Analysis Centre).

2. Cross-Jurisdictional Compliance

For projects spanning multiple jurisdictions, agencies typically:

  • Conduct thorough research on each jurisdiction's regulatory requirements
  • Engage local legal counsel in relevant jurisdictions
  • Implement compliance-by-design principles in their blockchain solutions
  • Use regtech solutions to automate compliance processes where possible
3. KYC/AML Procedures

Sydney agencies implement robust Know Your Customer (KYC) and Anti-Money Laundering (AML) procedures, which are critical for blockchain projects, especially those involving financial transactions or cryptocurrencies.

4. Data Privacy and Protection

With Australia's Privacy Act and the EU's GDPR in mind, agencies ensure their blockchain solutions are designed with privacy-preserving features, such as:

  • Zero-knowledge proofs
  • Secure multi-party computation
  • Data encryption and access controls
5. Smart Contract Audits

To mitigate risks and ensure compliance, Sydney blockchain agencies often conduct or outsource thorough smart contract audits. This helps identify potential vulnerabilities and ensures the code aligns with regulatory requirements.

6. Regulatory Sandboxes

Many agencies in Sydney take advantage of regulatory sandboxes provided by ASIC, allowing them to test innovative blockchain products in a controlled environment with regulatory guidance.

7. Continuous Monitoring and Adaptation

Given the rapidly evolving nature of blockchain regulations, agencies in Sydney maintain a proactive approach by:

  • Subscribing to regulatory updates from relevant authorities
  • Participating in industry forums and government consultations
  • Regularly updating their compliance frameworks and client advisories
8. Cross-Border Collaboration

Sydney's blockchain agencies often collaborate with international partners to navigate global regulatory landscapes. This might involve:

  • Participating in global blockchain associations
  • Engaging with regulatory bodies in key markets like the US, EU, and Singapore
  • Developing scalable compliance solutions that can adapt to various jurisdictions

By employing these strategies, blockchain development agencies in Sydney can effectively manage the complex regulatory and compliance aspects of blockchain projects across different jurisdictions. This approach not only ensures legal compliance but also builds trust with clients and end-users, positioning Sydney as a responsible and innovative hub for blockchain development in the Asia-Pacific region.